style.css

:root {  --bg: #fafafa;  --surface: #ffffff;  --surface-raised: #ffffff;  --text-1: #111827;  --text-2: #4b5563;  --text-3: #9ca3af;  --accent: #6366f1;  --accent-hover: #4f46e5;  --accent-soft: rgba(99,102,241,0.08);  --green: #10b981;  --green-soft: rgba(16,185,129,0.1);  --red: #ef4444;  --red-soft: rgba(239,68,68,0.06);  --border: #e5e7eb;  --border-hover: #d1d5db;  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);  --shadow-md: 0 4px 12px rgba(0,0,0,0.07);  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);  --radius: 12px;  --radius-sm: 8px;  --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;  --ease: cubic-bezier(0.16, 1, 0.3, 1);  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);}*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }html { scroll-behavior: smooth; }body {  font-family: var(--font);  background: var(--bg);  color: var(--text-1);  font-size: 15px;  line-height: 1.6;  min-height: 100vh;  -webkit-font-smoothing: antialiased;  -moz-osx-font-smoothing: grayscale;}.nav {  position: sticky;  top: 0;  z-index: 50;  background: rgba(250,250,250,0.82);  backdrop-filter: saturate(180%) blur(20px);  -webkit-backdrop-filter: saturate(180%) blur(20px);  border-bottom: 1px solid var(--border);}.nav-inner {  max-width: 640px;  margin: 0 auto;  padding: 0.7rem 1.25rem;  display: flex;  align-items: center;  justify-content: space-between;}.brand { display: flex; align-items: center; gap: 0.6rem; }.brand-svg { flex-shrink: 0; }.brand-name {  font-size: 1.15rem;  font-weight: 700;  letter-spacing: -0.025em;  color: var(--text-1);}.nav-right { display: flex; align-items: center; gap: 0.6rem; }.counter {  font-size: 12px;  font-weight: 500;  color: var(--text-3);  letter-spacing: -0.01em;}.fab {  width: 38px;  height: 38px;  border-radius: 50%;  background: var(--accent);  color: white;  border: none;  cursor: pointer;  display: grid;  place-items: center;  box-shadow: 0 2px 8px rgba(99,102,241,0.35);  transition: transform 0.2s var(--spring), box-shadow 0.2s, background 0.15s;}.fab:hover {  transform: scale(1.08);  box-shadow: 0 4px 16px rgba(99,102,241,0.4);  background: var(--accent-hover);}.fab:active { transform: scale(0.95); }.avatar-btn {  width: 34px;  height: 34px;  border-radius: 50%;  border: 2px solid var(--border);  background: var(--bg);  cursor: pointer;  display: grid;  place-items: center;  transition: border-color 0.2s, box-shadow 0.2s;  padding: 0;  position: relative;}.avatar-btn:hover { border-color: var(--border-hover); }.avatar-btn.signed-in { border-color: var(--green); }.avatar-btn.signed-in::after {  content: '';  position: absolute;  bottom: -1px;  right: -1px;  width: 10px;  height: 10px;  border-radius: 50%;  background: var(--green);  border: 2px solid var(--surface);}.avatar-initial {  font-size: 13px;  font-weight: 600;  color: var(--text-3);  line-height: 1;  user-select: none;}.avatar-btn.signed-in .avatar-initial { color: var(--text-1); }/* ── User menu ── */.user-menu-backdrop {  position: fixed;  inset: 0;  z-index: 59;  display: none;}.user-menu-backdrop.open { display: block; }.user-menu {  position: fixed;  top: 60px;  right: 50%;  transform: translateX(calc(min(320px, 50vw) - 1.25rem - 34px));  z-index: 60;  background: var(--surface);  border: 1px solid var(--border);  border-radius: 14px;  box-shadow: var(--shadow-lg);  width: 260px;  padding: 0.5rem;  opacity: 0;  pointer-events: none;  transform-origin: top right;  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);  transform: translateX(calc(min(320px, 50vw) - 1.25rem - 34px)) scale(0.95) translateY(-4px);}.user-menu.open {  opacity: 1;  pointer-events: auto;  transform: translateX(calc(min(320px, 50vw) - 1.25rem - 34px)) scale(1) translateY(0);}.user-menu-header {  display: flex;  align-items: center;  gap: 0.75rem;  padding: 0.6rem 0.65rem;}.user-menu-avatar {  width: 38px;  height: 38px;  border-radius: 50%;  background: var(--accent-soft);  display: grid;  place-items: center;  font-size: 15px;  font-weight: 700;  color: var(--accent);  flex-shrink: 0;}.user-menu-info { min-width: 0; }.user-menu-name {  font-size: 13px;  font-weight: 600;  color: var(--text-1);  white-space: nowrap;  overflow: hidden;  text-overflow: ellipsis;}.user-menu-sub {  font-size: 11px;  color: var(--text-3);  white-space: nowrap;  overflow: hidden;  text-overflow: ellipsis;}.user-menu-divider {  height: 1px;  background: var(--border);  margin: 0.3rem 0.65rem;}.user-menu-item {  display: flex;  align-items: center;  gap: 0.55rem;  width: 100%;  padding: 0.55rem 0.65rem;  border: none;  background: transparent;  border-radius: var(--radius-sm);  font-family: var(--font);  font-size: 13px;  font-weight: 500;  color: var(--text-2);  cursor: pointer;  transition: background 0.12s, color 0.12s;}.user-menu-item:hover { background: var(--bg); }.user-menu-item.danger { color: var(--red); }.user-menu-item.danger:hover { background: var(--red-soft); }.user-menu-item.hidden { display: none; }/* ── Main ── */.main {  max-width: 640px;  margin: 0 auto;  padding: 1.5rem 1.25rem 4rem;}.skeleton { display: flex; flex-direction: column; gap: 0.75rem; }.skel-card {  height: 88px;  border-radius: var(--radius);  background: linear-gradient(90deg, var(--surface) 25%, #f3f4f6 50%, var(--surface) 75%);  background-size: 200% 100%;  animation: shimmer 1.5s infinite;}.skel-card.short { height: 60px; width: 70%; }@keyframes shimmer {  0% { background-position: 200% 0; }  100% { background-position: -200% 0; }}.empty {  display: flex;  flex-direction: column;  align-items: center;  text-align: center;  padding: 5rem 2rem;  animation: fadeUp 0.5s var(--ease);}.empty-art {  width: 120px;  height: 120px;  border-radius: 50%;  background: var(--accent-soft);  display: grid;  place-items: center;  margin-bottom: 1.5rem;}.empty-art svg { color: var(--accent); }.empty h2 {  font-size: 1.15rem;  font-weight: 600;  color: var(--text-1);  margin-bottom: 0.35rem;  letter-spacing: -0.01em;}.empty p { font-size: 14px; color: var(--text-3); max-width: 280px; }.day-group { margin-bottom: 1.75rem; animation: fadeUp 0.4s var(--ease) both; }.day-group:nth-child(2) { animation-delay: 0.05s; }.day-group:nth-child(3) { animation-delay: 0.1s; }.day-header {  display: flex;  align-items: center;  gap: 0.75rem;  margin-bottom: 0.65rem;  padding: 0 0.1rem;}.day-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }.day-label {  font-size: 13px;  font-weight: 600;  color: var(--text-3);  text-transform: uppercase;  letter-spacing: 0.04em;}.day-count { font-size: 11px; color: var(--text-3); font-weight: 500; margin-left: auto; }.entry {  background: var(--surface-raised);  border: 1px solid var(--border);  border-radius: var(--radius);  padding: 1rem 1.15rem;  margin-bottom: 0.5rem;  position: relative;  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;  animation: fadeUp 0.35s var(--ease) both;}.entry:hover {  border-color: var(--border-hover);  box-shadow: var(--shadow-md);  transform: translateY(-1px);}.entry-top {  display: flex;  align-items: flex-start;  justify-content: space-between;  gap: 0.5rem;  margin-bottom: 0.35rem;}.entry-meta {  display: flex;  align-items: center;  gap: 0.5rem;  flex-shrink: 0;}.entry-title { font-size: 15px; font-weight: 600; color: var(--text-1); line-height: 1.35; letter-spacing: -0.01em; }.entry-time { font-size: 11px; font-weight: 500; color: var(--text-3); flex-shrink: 0; font-variant-numeric: tabular-nums; }.entry-body { font-size: 14px; color: var(--text-2); line-height: 1.65; white-space: pre-wrap; word-break: break-word; }.entry-tags { display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; margin-top: 0.65rem; }.tag {  font-size: 11px;  font-weight: 550;  padding: 0.18rem 0.55rem;  border-radius: 100px;  background: var(--accent-soft);  color: var(--accent);  letter-spacing: 0.01em;}.tag.mood { background: rgba(251,191,36,0.1); color: #b45309; }.entry-del {  position: absolute;  top: 0.65rem;  right: 0.65rem;  width: 26px;  height: 26px;  border-radius: 6px;  background: var(--surface);  border: 1px solid var(--border);  color: var(--text-3);  cursor: pointer;  display: grid;  place-items: center;  font-size: 13px;  opacity: 0;  transition: opacity 0.15s, background 0.15s, color 0.15s;}.entry:hover .entry-del { opacity: 1; }.entry-del:hover { background: #fef2f2; border-color: #fecaca; color: #dc2626; }/* ── Bottom sheet ── */.sheet-backdrop {  position: fixed;  inset: 0;  background: rgba(0,0,0,0.25);  backdrop-filter: blur(4px);  -webkit-backdrop-filter: blur(4px);  z-index: 90;  opacity: 0;  pointer-events: none;  transition: opacity 0.3s var(--ease);}.sheet-backdrop.open { opacity: 1; pointer-events: auto; }.sheet {  position: fixed;  bottom: 0;  left: 0;  right: 0;  z-index: 100;  background: var(--surface);  border-radius: 20px 20px 0 0;  box-shadow: 0 -8px 40px rgba(0,0,0,0.1);  transform: translateY(100%);  transition: transform 0.4s var(--ease);  max-height: 90vh;  display: flex;  flex-direction: column;}.sheet.open { transform: translateY(0); }.sheet-bar { width: 36px; height: 4px; border-radius: 2px; background: var(--border); margin: 0.65rem auto 0; flex-shrink: 0; }.sheet-body { padding: 0.75rem 1.25rem 1.25rem; flex: 1; overflow-y: auto; display: flex; flex-direction: column; }.input-title {  background: transparent;  border: none;  color: var(--text-1);  font-size: 1.4rem;  font-weight: 700;  font-family: var(--font);  outline: none;  padding: 0.25rem 0;  letter-spacing: -0.025em;}.input-title::placeholder { color: var(--text-3); }.input-row { display: flex; gap: 0.5rem; margin-top: 0.65rem; flex-wrap: wrap; }.input-chip {  display: flex;  align-items: center;  gap: 0.35rem;  background: var(--bg);  border: 1px solid var(--border);  border-radius: 100px;  padding: 0.3rem 0.7rem;  color: var(--text-3);  flex: 1;  min-width: 130px;  transition: border-color 0.15s;}.input-chip:focus-within { border-color: var(--accent); }.chip-input {  background: transparent;  border: none;  color: var(--text-1);  font-size: 13px;  font-family: var(--font);  outline: none;  width: 100%;}.chip-input::placeholder { color: var(--text-3); }.input-body {  flex: 1;  min-height: 160px;  background: transparent;  border: none;  color: var(--text-1);  font-size: 15px;  font-family: var(--font);  line-height: 1.7;  outline: none;  resize: none;  margin-top: 0.75rem;}.input-body::placeholder { color: var(--text-3); }.sheet-actions {  display: flex;  justify-content: flex-end;  gap: 0.5rem;  padding-top: 0.75rem;  border-top: 1px solid var(--border);  margin-top: 0.5rem;  flex-shrink: 0;}.btn {  font-family: var(--font);  font-size: 14px;  font-weight: 550;  border-radius: var(--radius-sm);  padding: 0.5rem 1.1rem;  cursor: pointer;  transition: all 0.15s;  border: none;  letter-spacing: -0.01em;}.btn-ghost { background: transparent; color: var(--text-3); border: 1px solid var(--border); }.btn-ghost:hover { background: var(--bg); color: var(--text-2); }.btn-primary { background: var(--accent); color: white; box-shadow: 0 1px 4px rgba(99,102,241,0.3); }.btn-primary:hover { background: var(--accent-hover); }.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; }.btn-block { width: 100%; text-align: center; }/* ── Auth modal ── */.auth-modal {  position: fixed;  inset: 0;  z-index: 200;  display: none;  place-items: center;  background: rgba(0,0,0,0.3);  backdrop-filter: blur(6px);  -webkit-backdrop-filter: blur(6px);  padding: 1rem;}.auth-modal.open { display: grid; }.auth-card {  background: var(--surface);  border-radius: 16px;  padding: 2rem;  width: 100%;  max-width: 340px;  box-shadow: var(--shadow-lg);  display: flex;  flex-direction: column;  align-items: center;  animation: fadeUp 0.3s var(--ease);}.auth-icon {  width: 48px;  height: 48px;  border-radius: 14px;  background: var(--accent-soft);  display: grid;  place-items: center;  color: var(--accent);  margin-bottom: 1rem;}.auth-card h2 { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.2rem; }.auth-card p { font-size: 13px; color: var(--text-3); margin-bottom: 1.25rem; text-align: center; }.auth-input {  width: 100%;  padding: 0.6rem 0.85rem;  border: 1px solid var(--border);  border-radius: var(--radius-sm);  font-size: 14px;  font-family: var(--font);  outline: none;  margin-bottom: 0.5rem;  transition: border-color 0.15s;  background: var(--bg);}.auth-input:focus { border-color: var(--accent); }.auth-error {  width: 100%;  font-size: 12px;  color: var(--red);  margin-bottom: 0.5rem;  min-height: 0;  transition: min-height 0.15s;}.auth-error.show { min-height: 1.2em; }.auth-card form { width: 100%; }.auth-card .btn { margin-top: 0.25rem; }@keyframes fadeUp {  from { opacity: 0; transform: translateY(12px); }  to { opacity: 1; transform: translateY(0); }}.toast {  position: fixed;  bottom: 1.5rem;  left: 50%;  transform: translateX(-50%) translateY(20px);  background: var(--text-1);  color: white;  padding: 0.6rem 1.2rem;  border-radius: 100px;  font-size: 13px;  font-weight: 500;  font-family: var(--font);  box-shadow: var(--shadow-lg);  z-index: 300;  opacity: 0;  transition: all 0.3s var(--ease);  pointer-events: none;}.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }::-webkit-scrollbar { width: 6px; }::-webkit-scrollbar-track { background: transparent; }::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }@media (max-width: 640px) {  .nav-inner { padding: 0.6rem 1rem; }  .main { padding: 1.25rem 1rem 3rem; }  .entry { padding: 0.9rem 1rem; }  .sheet-body { padding: 0.6rem 1rem 1rem; }  .user-menu { right: 1rem; transform: none; }  .user-menu.open { transform: translateY(0); }}@media (min-width: 641px) {  .sheet {    left: 50%;    right: auto;    width: 480px;    max-width: calc(100vw - 2rem);    transform: translate(-50%, 100%);    border-radius: 20px 20px 0 0;  }  .sheet.open { transform: translate(-50%, 0); }}.entry { cursor: pointer; }.entry-link {  display: inline-flex;  align-items: center;  gap: 0.3rem;  font-size: 11px;  font-weight: 500;  color: var(--text-3);  text-decoration: none;  padding: 0.15rem 0.4rem;  border-radius: 4px;  transition: color 0.15s, background 0.15s;}.entry-link:hover {  color: var(--accent);  background: var(--accent-soft);}.entry-link svg { flex-shrink: 0; }